topic Re: expanding /home after default install in Operating System - HP-UX

expanding /home after default install

Ferdinand_5 — Mon, 01 Nov 2004 11:46:27 GMT

I been a silly boy and left the /home dir at 20 MB during a re-install. I need to expand this /home dir.
It should be possible to expand /home to 400 MB but how do I do that without using ignite?

My box:
***************************************
HP-UX kenny B.11.11 U 9000/800 702017538 unlimited-user license
# bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 204800 71944 131872 35% /
/dev/vg00/lvol1 295024 36192 229328 14% /stand
/dev/vg00/lvol8 2609152 268976 2322416 10% /var
/dev/vg00/lvol7 1056768 1028152 28432 97% /usr
/dev/vg03/lvol2 4096000 2408583 1600742 60% /tport
/dev/vg00/lvol4 204800 14416 189096 7% /tmp
/dev/vg01/lvol4 8499200 6715220 1733822 79% /test
/dev/vg01/lvol3 9216000 6412780 2729120 70% /support
/dev/vg01/lvol1 8388608 6647645 1643849 80% /oracle
/dev/vg01/lvol2 8388608 6213231 2039544 75% /oracle/oradata
/dev/vg00/lvol6 925696 735496 188776 80% /opt
/dev/vg00/lvol5 20480 2280 18072 11% /home
/dev/vg02/lvol1 4194304 3199277 964537 77% /mnt/v2l1
/dev/vg02/lvol2 4194304 85353 3935149 2% /mnt/v2l2
/dev/vg02/lvol3 8388608 4565774 3734086 55% /mnt/v2l3
/dev/vg02/lvol4 8388608 5170654 3117730 62% /mnt/v2l4
/dev/vg03/lvol1 4096000 3585815 478529 88% /mnt/v3l1
/dev/vg03/lvol3 27361280 23154656 4142416 85% /mnt/v3l3

Re: expanding /home after default install

Victor BERRIDGE — Mon, 01 Nov 2004 11:55:49 GMT

Hi,
The easiest way is by using SAM,
Alternatives depends if you have online-JFS or not

All the best
Victor

Re: expanding /home after default install

Sridhar Bhaskarla — Mon, 01 Nov 2004 11:58:13 GMT

Hi,

Not a problem if you have enough space in your vg00. All you have to do is to unmount /home and then extend it. It should be easy if you don't have any application processes running out of /home.

1. Ask all your users to logoff. Find out the processes that are attached to this filesytem.

fuser -cu /dev/vg00/lvol5

If you don't find any PIDs, then go to step2. If you do, then do a 'ps -ef|grep pid' and see what those processes are doing. If they are not critical (make sure 100%), then kill them using the command 'fuser -k /dev/vg00/lvol5'.

2. Unmount /home

#umount /home

3. Extend the logical volume to say 1024MB.

lvextend -L 1024 /dev/vg00/lvol5
extendfs -F vxfs /dev/vg00/rlvol5

4. Mount it back and verify
#mount /home
#bdf /home

5. Ask your users to log back in.

If you have onlineJFS installed (swlist -l product |grep -i onlinejfs), then it's much easier. You can do it on the fly without distrubing the users.

lvextend -L 1024 /dev/vg00/lvol5
fsadm -b 1024m /home

-Sri

Re: expanding /home after default install

A. Clay Stephenson — Mon, 01 Nov 2004 12:01:22 GMT

It's trivially easy if you have OnlineJFS; SAM will do the job just fine. If not, you will need to unmount /home and extend the LVOL first and then the filesystem. Hopefully, you have some unused extents in vg00. The good news is that /home doesn't even have to be in vg00 although vg00 is the common convention.

Re: expanding /home after default install

Deoncia Grayson_1 — Mon, 01 Nov 2004 12:05:03 GMT

The gurus got to you first, but home can be extended through sam or through online jfs, this shouldn't cause any problems to your root filesystem. It isn't like /var where the server constantly writing to it,just make sure no one is working in the home directory and then umount it and you can extend it.

Re: expanding /home after default install

Prashant Zanwar_4 — Mon, 01 Nov 2004 12:06:27 GMT

If you have space in vg00, you can do it online if you have onlineJFS.

swlist -l bundle | grep -i JFS
lvextend -L path_to_lvol

fsadm -b

Hope this helps
Thanks
Prashant

Re: expanding /home after default install

Scot Bean — Mon, 01 Nov 2004 12:25:35 GMT

I guess one reason install defaults to a small size is that many folks use NFS to crossmount /home across all of their systems.

If this is your case, there is no need to expand /home on individual machines, just the NFS server.

Re: expanding /home after default install

Ferdinand_5 — Mon, 01 Nov 2004 12:30:32 GMT

I have:
# more fs
LOCAL=vxfs
#

I have done it once useing the command line.
How would I do it useing sam?

# pvdisplay /dev/dsk/c1t15d0
--- Physical volumes ---
PV Name /dev/dsk/c1t15d0
VG Name /dev/vg00
PV Status available
Allocatable yes
VGDA 2
Cur LV 8
PE Size (Mbytes) 4
Total PE 4340
Free PE 2527
Allocated PE 1813
Stale PE 0
IO Timeout (Seconds) default
Autoswitch On

Btw: Gawd your quick!

F

Re: expanding /home after default install

Victor BERRIDGE — Mon, 01 Nov 2004 12:51:57 GMT

Depends if you have a X emulation or not...
under X be sure you have exported you DISPLAY=:0.0

sam&

otherwise just type sam...

I will take X to guide you:
Once opened click on "Disks and File Systems" then "Logical Volumes" - choose your lvol where mount directory = /home
Then
Action => Increase size

Simple no?

To know if you have ONline-JFS:
swlistÂ¦grep JFS will show if bought separately
or swlist -l productÂ¦grep JFS

All the best
Vi

Re: expanding /home after default install

Victor BERRIDGE — Mon, 01 Nov 2004 12:53:11 GMT

Just seen strange characters you should read pipe |

All the best
Victor

Re: expanding /home after default install

Ferdinand_5 — Tue, 02 Nov 2004 03:32:25 GMT

Everyone is such a help

Perfect solutions.

THX a lot!

F